baber/WOPTO huggingface dataset:
Patent GB-1343910-A (GB)
Title: Strip feeding mechanisms
IPC: G03B21/32
Filed: 1971-04-19
Abstract: 1343910 Cine apparatus EASTMAN KODAK CO 19 April 1971 [18 March 1970 24 March 1970] 24554/71 Heading G2E A film stripping device for cine apparatus includes a finger 32 and drive mechanism 34 which in their operative positions (inoperative positions shown by dotted lines) define a film path between them, which has a narrow portion. As shown the mechanism 34 has a drive shaft 40 and pulley 46, idlers 48, 50, 52, 54 and belt 60. The belt 60 contacts the film 18 wound in cartridge 14 and unwinds it and the tip 42 of finger 32 guides it into the film path. Pivoted member 64 is urged by spring 70 to press the film 18 against finger 32 (this being the narrow portion of the film path) and prevents any twists in the film 18 from passing into the projector 10. The member 64 is limited in its movement by its end 66b abutting a stop 68. Alternative embodiments replace the member 64 by an elongated shoe (94), Fig. 4 (not shown), which is urged towards the finger 32, or a pivoting member (80), Fig. 3 (not shown), pressing the belt 60 towards the finger 32. In another embodiment the narrow portion of the film path is defined by a projection on the finger and the belt  possesses only one idler and one driving pulley and is substantially parallel to the finger throughout its length.
Patent GB-648561-A (GB)
Title: Grinding and polishing machine
IPC: B24B7/13
Filed: 1948-09-20
Abstract: 648,561. Control of motors. HAMILTON, A. E. Sept. 20, 1948, No. 24559. Convention date, Oct. 8, 1947. [Class 38(iii)] [Also in Group XXIII] The supporting stand for a pair of superposed polishing rollers 43, 44 is reciprocated transversely of a travelling strip 49 which is being polished (see Group XXIII) by a motor adapted to be reversed automatically as opposite edges of the strip are engaged by rollers 107 adjustably mounted on a switch-actuating arm 103. This arm extends over the path of travel of the strip and is mounted on a bar 99 slidable in guides 98 on a bracket 97 movable withrthe stand. A car rail 100 on the arm co-operates with the switch 102 so as to reverse the motor when either roller 107 is engaged by an edge of the strip. The arm 103 is pivoted to the bar 99 so that it can be swung upwardly when desired. Alternatively, the motor may be reversed by suitably-positioned magnetic switches or photoelectric cells and light sources co-operating with the edges of the strip, Figs. 14 and 15, (not shown). The motor is movable with the stand and is arranged to reciprocate the latter by driving a screw-threaded shaft engaging a base member. For reversing the motor in case no strip should be present, a safety switch is provided for actuation by a member in the base.
Patent GB-1255072-A (GB)
Title: A process and device for the continuous winding of strand material
IPC: B65H67/052
Filed: 1969-05-14
Abstract: 1,255,072. Continuous winding apparatus. E. NIEHOFF [trading as MASCHINENFABRIK NIEHOFF K.G.], 14 May, 1969 [14 May, 1968], No. 24649/69. Heading D1J. In a wire winding apparatus having two parallel reels 2, 3 with auxiliary reels 23, 24 adjacent one end flange of each, the wire passes between pulleys 6 directly to reel 3. When the reel 3 is full, a roller 8 is advanced to deflect the wire to a path beneath a pulley 19 (dotted lines) on a pivoted arm 17. A roller 9 is advanced and the arm 17 and pulley 19 swung down to the position shown in full lines, the path of the wire then being as illustrated. Cutter 27 on the rotating auxiliary reel 23 severs the wire which then commences winding on reel 23. When roller 9 is retracted, winding proceeds on reel 2, the arm 17 and pulley 19 being returned to their original positions, and pulleys 6 being moved to the other side of the machine in readiness for commencement of winding on an empty reel in the place of full reel 3, using a similar transfer process.
Patent GB-1533448-A (GB)
Title: Gas or air cleaners
IPC: B01D47/10
Filed: 1976-06-15
Abstract: 1533448 Gas cleaner HOWDEN ENG Ltd 13 June 1977 [15 June 1976] 24653/76 Heading B1R Gas to be cleaned passes via inlet ducting 16 into tunnel casings 12, through necked portion 22 to make contact with a water bath 3, then flows under serrated wier plates 9 and to throttling clearances 23, 23' to cause turbulence in the gas flow and thence to gas outlet duct 17, the restriction provided by 23 and 23' being adjustable by elastomeric material 28 actuated by eccentrically mounted, worm-driven rollers 30 in housings 31.
Patent GB-481518-A (GB)
Title: Improvements in or relating to apparatus for measuring electric potentials
IPC: G01R19/00
Filed: 1936-09-11
Abstract: 481,518. Current and volt meters; valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and JACOBSEN, B. B. Sept. 11, 1936, No. 24813. [Class 37] [Also in Group XL] A valve voltmeter comprises a negative feedback amplifier 3 in which the output is connected to a rectifier 12 through a condenser 8, the continuous - current instrument 11 and a series resistance 9 being in shunt to the condenser across which the voltage to be measured is built up. The instrument 11 can be calibrated in decibels to measure gain of the amplifier in respect of a standard voltage. In Fig. 2, a resistance 14 in the anode and grid circuits of the valve 3 gives a negative feed-back, the measuring instrument 11 and high resistance 9 being connected as before between the grid and filament of rectifier 12. The input and output transformers 1, 6 of Fig. 1 are dispensed with and the circuit is employed for measuring voltages at high-frequencies. In Fig. 3, a feed-back voltage is effected by the output circuit comprising condenser 16 and resistances 17, 18, variations of the proportion of resistances 17, 18 varying the amount of feed-back. If resistance 9 is high compared with the impedance of valve 12, peak-voltage measurements can be made, and the phase change due to transformer 1 kept constant or zero. If a resistance y, high compared with that of 9 is inserted, average volts are measured. Fig. 4 shows a bridge arrangement, the four arms comprising valve 3, and resistors 17 ... 19, the measuring circuit being connected across one diagonal and the feed-back across the other, the amount of feed-back being dependent upon the ratio of resistors 17, 18. Screen grid valves may be employed for the valve 3 to increase the sensitivity of the amplifier, or two separate valves may be employed for this purpose. When screen grid valves are employed the negative feed-back is applied to the screen grid, Fig. 8. In Fig. 7, a dry surface rectifier 12 is used in shunt to the instrument circuit, and where two valves such as 3, 3a are employed as the amplifier, these valves may be of the type described in Specification 478,272, [Group XL]. in this case, while the main feed-back is negative, the resistor 18 will provide a positive feed-back to that stage only in which the resistor is connected. The feed-back can be employed for range-changing if two or more fixed feed-back circuit conditions are incorporated, the sensitivity factor for example being adjusted in powers of 10.
Patent GB-486278-A (GB)
Title: Improvements relating to machine for feeding and shearing strip material
IPC: B23D33/02
Filed: 1937-09-13
Abstract: 486,278. Shearing ; stamping. PERCIVAL, S. (Jacobs Co., F. L.) Sept. 13 1937, No. 24876. [Class 83 (iv)] A blank B, Fig. 15, is positioned in a machine and four strips S are fed through straps 86 and are sheared by four feeding and shearing mechanisms arranged side by side. Feeding.-Mutilated feed rolls 36, 40 are rotated on depression of a pedal through a one-revolution clutch driven from an electromotor. The roll 40 is adjustable circumferentially by a screw 46 to vary the length of mating surface and the length of strip fed. A cam C on a feed roll shaft 32 lifts a lever 64 carrying work-holders 68, 70 and the blank is positioned by hand on a table T against a shear blade 58. Shearing.-A shear blade is carried in a, housing 27 and is operated by a lever 54 rocked by a cam 48 on the shaft 32. The housing is adjustable by a screw 94. The strips are fed between legs 59 of the blade and, on depression, the front side shears the severed part normally and the rear side bevels the forward end of the following strip. A punch 74 makes a depression locking the strip and the strap. Operation. The blank is positioned by hand under the clamps 68, 70 with fingers 88 engaging slots in the blank and with the edge of the blank against the edge of the blade 58. Depression of the pedal operates the one-revolution clutch and the feed rolls advance the four strips into the straps. Feeding then stops and the strips are sheared at the edge of the blank.
Patent GB-1315144-A (GB)
Title: Devices for operating the dials of dial-operated apparatuses
IPC: H04M1/23
Filed: 1970-05-22
Abstract: 1315144 Writing appliances combined with telephone dialling appliances G SPIEREN BURG 22 May 1970 [2 June 1969] 24956/70 Heading B6P [Also in Division H4] A dialling finger comprises a conical part 2 rotatably connected to a handle or stem 5 by a ball and socket joint. A ball point pen or a pencil serves as the handle. Alternatively the stem 5 may be pin-shaped to fit into the upper end of a ball-point pen or it may be shaped as a case or tube to protect the point of the writing instrument.
Patent GB-425171-A (GB)
Title: Improvements in means for feeding loose material or articles, such as potatoes, intomachines for performing cutting or other operations thereon
IPC: B26D7/06
Filed: 1933-09-08
Abstract: 425,171. Cutting and slicing vegetables. ABBOTT, G. J., 16, Mordaunt House, Larkhall Estate, Albion Road, Clapham, London. Sept. 8, 1933, No. 24959. [Class 5 (i)] [See also Group II] Potatoes are fed to a chipping machine comprising a hollow rotor 11, such as that described in Specification 379,800, by means of a substantially V-shaped trough 13 in which a flap 13, pivoted at 17 and cut away at 19, is moved to and fro by the coaction of a cam surface 15 on the rotor and a roller 21 secured to the flap. The rotor may comprise a flange 12 which may be provided with an internal, helical rib 22: at the inner end of the flange, the rib 22 terminates in a circular rib 23 and, as it approaches the outer end, the rib 22 may decrease in depth.-
Patent GB-729405-A (GB)
Title: Improvements in or relating to electric wave filters employing waveguides
Inventor: LEWIN LEONARD
IPC: H01P1/213
Filed: 1953-09-10
Abstract: 729,405. Wave-guide filters. STANDARD TELEPHONES & CABLES, Ltd. Sept. 10, 1953, No. 25042/53. Class 40 (8). An impedance unit for a frequency-rejection filter in a rectangular wave-guide 15 comprises a series-resonant element 18, 20 which is capacitatively coupled by a screw 24 to one wide wall of the guide and inductively coupled to the other wide wall by a post 26. The seriesresonant element consists of an inductive post 18 and a screw 20, spaced plates 22, 23 on the post and the screw providing the necessary capacity. The rejection frequency may be adjusted by means of the screw 20. On either side of this frequency the post 26 and screw 24 produce a parallel-resonance and the Q of the unit may be adjusted by means of the screw 24. The filter of Fig. 2 comprises three units spaced by #/4. The central unit provides a shunt arm producing a series-resonant impedance and the other two units provide in effect two series arms comprising parallel-resonant impedances. The Specification shows that the filter has the best characteristics when the Q's of the outer units are equal and equal to twice the Q of the central unit. Two reflector filters 6, 7 according to the invention may be embodied in the network of Fig. 1 for the rejection of a channel having a carrier frequency fr from a number of such channels. The filters are connected in the arms 4, 5 connecting two hybrid junctions 3, 10 and are tuned to the frequency fr. If the distances of the filters from the junction 3 are arranged to differ by #r/4 the rejected channel will appear at the terminal 13 and all other channels will appear at the output 11 of the hybrid junction 10.
Patent GB-645647-A (GB)
Title: Improved holder for rolls of paper and like strip material
IPC: A47K10/38
Filed: 1948-09-25
Abstract: 645,647. Roll holders. MAYSTON, R. C. Sept. 25, 1948, No. 25080. [Class 18] A holder for a roll of paper or like strip material comprises a rod 14, for supporting the roll, extending between two brackets 4 which also support a frame 1 carrying a severing device 18. The rod is supported in slots 13 in the ends of bolts 9 having square shanks 10 and which project through square holes 8 in the ends of the frame 1 and brackets 4, nuts 12 securing the bolts in position. The severing device 18 is supported by arms 17 mounted between lugs 15 on the frame 1, springs 19 urging the blade of the severing device into engagement with the roll. If the brackets 4 are mounted on a horizontal surface, the frame 1 is retained in alignment with them, the slots 13 in the bolts extending upwardly to support the rod 14. If the brackets 4 are mounted on a vertical surface the bolts are removed to enable the frame 1 to extend at right angles to the brackets, the bolts being replaced, with their slots still extending upwardly for supporting the rod, to retain the frame in position. Alternatively, only one of the bolts need be provided with a slot 13, the other being centrally apertured and in which the rod is initially, engaged.
Patent GB-496808-A (GB)
Title: Improvements in and relating to centrifugal separating machines
IPC: B04B3/02
Filed: 1938-08-26
Abstract: 496,808. Centrifugal separators. TER MEER, G. Aug. 26, 1938, No. 25102. Convention date, Aug. 26, 1937. [Class 23] A centrifugal separator has two overhung separating drums 10 with perforated walls mounted on opposite ends of a horizontal hollow shaft 1 running in two bearings 3. The shaft is expanded to form a cylinder 4 between the bearings, and this cylinder contains a piston 5 attached by a rod 6 to sliding push bottoms 7 in the drums 10. Material is supplied through the inlet pipes 8 and hoppers 9 ; the moisture passes through the drum walls to the chambers 11 and the solids are thrust into the chambers 12 by the push bottoms 7 actuated by pressure fluid supplied to the cylinder 4 through passages in the bearings. The cylinder 4 also serves as a pulley for a belt drive.
Patent GB-429460-A (GB)
Title: An improved toy riding animal movable on wheels
IPC: A63G19/00
Filed: 1934-08-31
Abstract: 429,460. Horse and like velocipedes. KOOI, W. B. VAN DER, 136, Spanjaardslaan, Leeuwarden, Friesland, Holland. Aug. 31, 1934, No. 25115. Convention date, Sept. 23, 1933. [Classes 136 (ii) and 136 (iii)] Relates to a toy riding animal of the kind having a moving saddle and moving stirrups on which the rider simulates riding movements to produce, by means of interconnecting gearing, rotation of the wheels. As shown in the Figure, the saddle 3 is carried on a rod 4 and returning-springs 2, the rod 4 being connected to a crank 5 connected by a free-wheel to the shaft 6. A sprocket on the shaft 6 is connected by a chain to the rear wheel 8. The stirrups 9 are suspended on springs 10 and are connected to cranks 11 connected to the shaft 6 by free-wheel means, the ends of the cranks being guided in curved slots in the sides of the animal. A further propelling action is derived from pulling and releasing a loop 14 on a cable, running over pulleys 13, connected to a free-wheel crank 12 on the shaft 6. A returning spring 15 is provided. Backward motion is effected by a foot lever 17 which slides in a slot 17<a> and is connected to a crank 16 having a free-wheel connection with the shaft 6. This freewheel, and, if desired, the other free-wheels on the shaft 6, are of a known type in which the pawl is normally out of engagement with the ratchet teeth and is brought into engagement during the first part of the movement of the crank. The lever 17 may also be used for braking. Steering is effected by means which swing one fore leg forward and the other backward on pivots 21, the wheel axle having ball ends engaging in socket bearings to permit this. The swinging of the fore legs is effected by cranked levers 22 pivoted at 21 and having upstanding ends 23 which pass through bushes 24 connected by a chain which passes around sprockets 26, 27. The ends of the bridle 28 are connected by flexible members 29 with the chain, so that pulling on one side of the bridle will effect the swinging of the legs and, consequently, the steering.
Patent GB-713928-A (GB)
Title: Improvements in and relating to balanced flue heaters
IPC: F24C3/00
Filed: 1952-10-07
Abstract: 713,928. Gas heaters. DIEPENBROCK & REIGERS, N. V. Oct. 7, 1952 [Oct. 13, 1951], No. 25119/52. Class 126 A balanced flue heater comprising a boxlike body with a burner in the bottom thereof and two rising draught compartments flanking an interposed down draught compartment is characterized in that the compartments are separated from each other by vertical partition walls and from the burner space by a substantially horizontal plate said partition walls having openings near the top of the box and said plate forming at the base of each said rising draught compartments a baffle ridge surrounding an opening. In the heater shown a sheet metal body 1 is divided into four compartments, a horizontal compartment 6 containing a burner 3 two vertical rising draught compartments 7a, 7b and one down draught compartment 8 which is fitted with a baffle 13 at the top where openings 10 are provided for communication between the compartments. The upper wall of the burner compartment is formed by a plate 5 which is provided with openings 4a, 4b, leading to the compartments 7a, 7b, respectively. Combustion air is fed to the burner through a duct 14 whilst combustion products after passing up the compartments 7a, 7b are led to the atmosphere via compartment B and duct 12. The heater may be made in various lengths but every down draught compartment must be interposed between a pair of adjacent rising draught compartments.
Patent GB-518551-A (GB)
Title: Improvements in or relating to cross-talk balancing units
IPC: H01B11/16
Filed: 1938-08-26
Abstract: 518,551. Preventing inductive disturbance. STANDARD TELEPHONES & CABLES, Ltd. Aug. 26, 1938, No. 25159. Convention date, Sept. 30, 1937. [Class 40 (iv)] [Also in Group XXXV] A cross-talk balancing unit for use in a four wire transmission system comprises an insulating former 11 carrying light windings 34-41 arranged in two separated sets of four windings 34, 36, 38, 40 and 35, 37, 39, 41 each set comprising two layers and each layer comprising two windings wound in opposite directions to form alternate turns of the layer, a two-part magnetic core 14, 15 being arranged within the former 11 and being adjustable therein to increase the mutual inductance of one set of windings and decrease that of the other set while maintaining the inductive reactance of the unit approximately constant. The four outer windings 38-41 are connected in circuit with one pair R, W of the system and the four inner windings 34-37 are connected in circuit with the other pair G, B and are wound as shown in Fig. 5 so that by suitable adjustment of the core 14, 15 signal current in one pair causes voltages to be induced in the other pair which neutralizes. undesirable crosstalk voltages produced in this other pair externally of the unit. Windings 24, 25 carried on spools 22, 23 on the tube 11 may be connected in parallel with the series connected pairs of windings 34, 35 and 36, 37, respectively to obtain a mutual inductance characteristic of the windings 34-41 similar to the mutual inductance existing between any two cable pairs. The Specification states that the side-to-side capacity unbalance is substantially zero in the arrangement described. The unit may be enclosed in an aluminium or other non-magnetic shield 26 into which wax or other insulating compound is introduced. The tube 11 may be of phenol fibre and the magnetic core members may be of molybdenum permalloy dust and may be fixedly mounted on a screw-threaded brass rod 16 adjustable by rotation of a hexagonal head 20. Specification 468,735 and U.S.A. Specification 2,008,061 are referred to.
Patent GB-708618-A (GB)
Title: Improvements in or relating to superheterodyne receivers for frequency-shift telegraphy
IPC: H04L27/14
Filed: 1952-10-08
Abstract: 708,618. Code telegraph receivers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 8, 1952 [Oct. 11, 1951], No. 25215/52. Class 40 (3). [Also in Group XXXV] Relates to superheterodyne receivers for frequency-shift telegraphy comprising a local oscillator 6 associated with a frequency corrector 18 for automatically tuning the receiver into conformity with the mean transmission frequency, the correcting-voltage being derived on a lead 29 from a tuned frequency discriminator 9 ; and consists in interposing in the lead 29 a contact 30 controlled by a delayed-response relay 28 which does not respond to the detected signals, but only to a continuous energization such as would result from a continuous mark signal sent during a non- signalling period. When the relay 28 operates, the lead' 29 is interrupted and the setting of the frequency-corrector 18 remains static so that it is ready to resume control when signalling starts again. The mark and space signals appear at the output of the discriminator 9 as positive and negative voltages alternately unblocking and blocking the valve 10: This valve is coupled by a common cathode resistor 12 to a second valve 11, which is alternately blocked and unblocked. Signals are thus recorded as by a pen 17 controlled by a relay 14, the centre-tapped coil of which has its respective sections in the anode circuits of the respective valves 10, 11. The relay 28 does not respond to the detected signals on account of a short-circuited coil 27. When, however, a continuous mark signal is received, the relay 28 operates and disconnects the AFC circuit.
Patent GB-907148-A (GB)
Title: Improved process for carrying out telomerizing reactions
IPC: C07C17/275
Filed: 1959-07-22
Abstract: <PICT:0907148/III/1> Apparatus suitable for telomerization reactions (see Group IV(b)) comprises a vessel 4 (preferably tubular and vertical) with a means for controlling the temperature of the reactants by heat exchange through the walls thereof, e.g. the jacket 8 for a cooling liquid and a device for causing a telogen in liquid form (see Group IV(b)) to form a liquid film over the inside walls of the vessel, e.g. the rotary basket 11 on shaft 20, the liquid being preheated in heater 3.  Gaseous olefine is fed under pressure through piping 7.  Liquid products are discharged through 13, cooled in 14, and passed to separator 15 for recycle of gaseous olefine via 16 and to distiller 17 for recycle of telogen via 19.  Reaction product is taken off at 18.ALSO:Telomers are prepared from gaseous olefines by a process in which the telogen, together with a polymerisation catalyst, is fed to the reaction chamber wherein the telomerisation is to take place under superatmospheric pressure, in the form of a liquid film running at the periphery of said chamber, in immediate contact with the walls, through which heat exchange takes place. Ethylene and propylene are specified as the olefine.  The telogen may itself be liquid at room temperature to reaction temperature (such as carbon tetrachloride, chloroform, monochloroacetic acid, trichloroacetic acid, ethyl bromoacetate, mono- and diethyl malonate, methyl formate and methyl trichloroacetate), or may be dissolved in a suitable solvent (such as tribromoacetic acid and hexachloroethane in pentane, octane or hexadecane; and hexabromoethane, dibromoethane and dibromoacetophenone in dioxane).  Suitable catalysts are acyl oxides such as benzoyl peroxide; azoisobutyronitrile; and metal halides.